From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S269835AbUH0AD6 (ORCPT ); Thu, 26 Aug 2004 20:03:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S269817AbUH0AAt (ORCPT ); Thu, 26 Aug 2004 20:00:49 -0400 Received: from rwcrmhc12.comcast.net ([216.148.227.85]:56499 "EHLO rwcrmhc12.comcast.net") by vger.kernel.org with ESMTP id S269802AbUHZXyN (ORCPT ); Thu, 26 Aug 2004 19:54:13 -0400 Message-ID: <412E7821.7020100@namesys.com> Date: Thu, 26 Aug 2004 16:54:09 -0700 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rik van Riel CC: Andrew Morton , Spam , wichert@wiggy.net, jra@samba.org, torvalds@osdl.org, hch@lst.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, flx@namesys.com, reiserfs-list@namesys.com Subject: Re: silent semantic changes with reiser4 References: In-Reply-To: X-Enigmail-Version: 0.85.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Rik van Riel wrote: >On Thu, 26 Aug 2004, Andrew Morton wrote: > > > >>All of which can be handled in userspace library code. >> >>What compelling reason is there for doing this in the kernel? >> >> > >There's a compelling reason to do it in userspace. If an >unaware program copies or moves such a file with streams >inside, it doesn't break the streams and aware programs will >continue to see them. > >OTOH, if we had the streams in the kernel, unaware applications >would continuously break the metadata and streams that the >streams aware programs expect ! > > > Well, first off, you don't want streams in the kernel, you want all the little pieces that can be composed together into a stream if you so choose. Streams are ugly, the pieces are all cool.